Most guests only VISIT every five years, so "seeing it for five years," to them, is seeing it once. Criticism of MSEP on this board is largely driven by a disconnect between Disneyphiles (us) and "regular" guests. The constant need for things to be "new and fresh" is magnified if you're at WDW all the time. If you only visit every five years, everything is new and fresh by default.
It's the same mentality that leads to people calling DHS a half day park. DHS is only a half day park if you skip some combination of Mermaid, BatB, LMA, Idol/Frozen, Indiana Jones, Magic of Disney Animation / Animation Academy, Disney Junior, and One Man's Dream. For the average guest who's only been a couple of times in his/her life, he/she is much more likely to do all of those attractions than a frequent guest who has seen them all dozens of times and can get through DHS by doing Tower, RnRC, Star Tours, and Toy Story.
