This is Post 90s Eisner talk. Back in Walt's day his (then small) company was building Disneyland, creating a big budget live action sci fi movie, and an animated movie all at the same time. Sure if anyone of them wasnt sucessful it would have been gameover for the company but Walt took the chance and it payed off big time.
Even back in the 80s when Eisner had a brain and a spine (and more importantly, the right people with him) it was non stop development at the parks with stuff like Captain Eo, Star Tours, Splash Mountain, Living Seas, Horizons, MGM Studios, etc. etc. Richly themed, No cheap cardboard cut out attractions and no cheap and tacky stuff like wands and dinorama. That and the 180 degree turn around at Animation is the reason it is hailed as the "Second Golden Age" of the company.
Disney is a huge mega corporation now..they can easily afford to build Tokyo Disney Seas quality stuff here but they arent because the business people in charge are saying "no you know what americans cant tell the difference so we can keep building mediocre cheap stuff and the'll keep coming".
To end on a positive note it should be noted that the "Third Golden Age" is going to begin at the company shortly.