That's fair.
Its just wild to see people beg for a night parade in the style or spectro, then have disney roll that out only for people to tear it to shreds off of a video of it from a cell phone, without even seeing it.
I wouldn't say it feels particularly similar to Spectro, unless you consider any "classical" sounding music to be Spectro style. If anything, blue fairy, train and the borrowed music cues scream MSEP lineage. The idea that Starlight is even remotely in the same universe of quality as Spectro is absurd and an insult to Spectro's designers. I also say this as someone who thinks Starlight is decent and has a promising foundation for improvement. If it WAS more similar to Spectro (I've advocated for a "Dreamlights" style rebuild of Spectro forever now) or the others close to its quality, you'd see far less criticism.
Starlight has the potential and foundation to be a legitimately great parade that COULD be a top tier one IMO. But as it stands, it needs a significant amount of work to get there Some of the most glaring problems would even be relatively easy to fix and would immediately elevate it up a couple of points. But I am unconvinced that Disney will ever acknowledge, let alone approve, any of these necessary changes to get it there.
I'll quantify parade quality on a horizontal line with a 10 point scale. 5 is the middle and represents mediocre, neither good nor bad. Below 5 represents varying levels of underwhelming/bad, above 5 are varying levels of decent/good.
Spectromagic to me is a 10/10. The best overall in terms of float design, length, and especially music. Dreamlights has awesome tech and float design, but Spectro and Fant (original version) both have better music (Spectro being the better of the two), and are much longer. I go back and forth between 9/10 or 10/10 for both of these parades. But all three of these are top tier. MSEP was a 7/10 for me in its heyday, the floats and length were quite good for their time until Spectro and the others came along and blew it out of the water. But never been a big fan of the music (catchy but annoying). Paint the Night is barely a 4/10, I find the music and most of the float designs to be ugly, obnoxious and inappropriate for what I expect from a castle park parade. Only reason it isn't lower is because I do like the costumes and two of the princess floats.
Starlight is very tricky for me to rate because it has elements that I really like and want to praise it for, but glaring issues that really drag it down. It's not easy or simple to settle on a solid number, but, I think I have to give it a 6/10 in its current form. Has a good foundation to build on, I like most of the floats and the soundtrack, but it also feels half finished and empty in a lot of spots along with some weird amateurish design faults here and there. If they bring the street performers and their costumes up to the standards of the other parades, I'd bump it up to a 7/10. Add a decent handful of small filler floats between the big ones, it's an 8/10. Another 5 or so good major floats and it might be 9/10 and finally feel "complete". None of these are unreasonable expectations, Starlight stands alongside PtN as the most disappointingly short night parades, both having fewer than 10 major floats each. Dreamlights by comparison has 18 major floats currently (Spectro/Fant had significantly more than even that). And this isn't including the many smaller filler floats and performers, of which even PtN has tons of compared to Starlight.