I think he already sees Spurs as something of a sleeping giant. I'm sure this claim will be greeted with derision by some, probably the same caftards who have in recent years consistently under-estimated our likely league finishing position before each season has kicked off.
The same folk under-estimate the scope and scale of ambition of Spurs - and our developing means to realise those ambition. And the same folk under-estimate the significant boost in income that will come from our new stadium complex and don't fully appreciate the many revenue streams it will generate, some of which won't be available to other clubs simply because they don't have a multi-use, multi-purpose stadium complex.
Already - pending more recent financial results from one or two other clubs - we are in 8th place in the global football club rankings for financial income.
Moreover, we already have the state-of-the-art training facilities that you mention, plus the global scouting network and excellent youth system that you've also mentioned, plus a global and growing fanbase, albeit one that is still smaller than several other clubs.
Of course we don't yet have anything close to the same income level as United, but the gap is narrowing and will likely narrow further in coming years.
My overall point is that - for Eriksen and Pochettino - the attraction of United compared to Spurs is not as big as perhaps (?) you imagine. And then, when you add the likes of Real Madrid, Barcelona, B. Munich, Juventus (and others) in to the mix, the competition becomes even stiffer in terms of attractive clubs.
Yes, United are a sleeping giant. And yes, money can talk, but I don't think it will in this case.