What a weak interview.
Stage by stage platformers were certainly not getting harder. And why would that be a bad thing if they were?
He says that they wanted to create a game in the style of Zelda, yet they practically carbon copied the Super Metroid format. It's almost like he wants to deflect or distract away from that fact by trying to cite Zelda. The only thing in common with Zelda that SOTN has is gathering items. In Zelda you explore a vast open world making stops in multiple castles. Simon's Quest has more in common with Zelda than SOTN.
He acts as if difficulty in games is a bad thing... That's something Castlevania was known for before SOTN. Paying money for a game should not give you an automatic ticket to beating the game.. I hate that mentality in gamers and devs these days! I like the love/hate relationship with a fun but difficult game.
Example: I'll admit that I've never beaten Castlevania X68000 (blushing). But guess what? I've bought it twice! It doesn't make me feel like I haven't gotten my money's worth. The game just kicks my ass. I'll probably finally beat it when I'm 75 years old and in a nursing home, and that's cool with me! I've also never beaten Haunted Castle and I would gladly fork out money for it if it got a US release.
I'm not trying to start another IGA debate or anything, but come on... This guy frustrates the hell out of me sometimes.