Your post looks well researched, so credit for that.
But why should it even matter what came before ENIC?
ENIC have failed to deliver on the pitch. Which is the only thing that counts.
I do think it would be relevant for the 00’s period as a defence of the board that was close to the 90’s but it also doesn’t look at the 50-80’s when we where a big club winning lots of trophies and built up a big fanbase which is now used with the stadium to generate lots of money. The 90’s is some weird thing around the neck of Spurs fans, it happened and it might be even be coming back if we stay on this course but we are along way from Sugar just as we are along way from the double winners and the UEFA cup winners.