Eh, backlot was very underutilized. They closed it and a show, and are replacing it with two new e-tickets, a D coaster and a C flat ride. The only real "rip and replace" attraction I see here is MMRR for GMR.
In Epcot you have Guardians (replace), Rat (new) and possibly Poppins (new). In MK whatever replaces Stitch (which no matter what it is will be a net positive) and Tron (new). In AK, they just added Pandora (new). So over the next few years, new attractions are equal to or more than rip and replace.
The problem is demand will increase faster than capacity due to SWL. So while they are making an effort to build, it's not enough, so they are doing things to manage capacity. One can argue that they should and could do more (which I think is the case), but to say they aren't doing anything to add capacity is simply not the case.