If you were considering enrolling in a university, would you look into the reputation of that university? I'll bet you would. You'd want to know what it's reputation is like. Well, I'm offering insights into that, and yes his seniority got pulled into that description. He's quite a junior monk to be running his own website. In the Theravada world, this would be almost universally discouraged (it isn't just me who feels this way): trying to run a website while still quite a junior monk. There's no way my own teacher would have approved of it. Theravada culture is conservative - guilty as charged there.
As to his wisdom: I've never actually lived with him, so I can't comment on what he's like. He seems astute enough from my dealings with him. No complaints from me, other than that choice of the word "university". These sorts of things - someone's wisdom - can only be seen with time. As to his choices of what he curates on his website: I agree there's a lot of great resources listed there. My tastes and his are a little different - which is to be expected - and I wouldn't say there are any "red flags" to speak of. It's a solid website. Please don't be discouraged from checking it out. I'm not trying to stop anyone from going explore it. Thanks for taking the time to check out Theravada Buddhism. :)
PS: I have a personal little indie website here: https://bhikkhu.ca/ ...but I don't go so far as to call it a "university". It's a personal website, which doesn't make itself out to be anything more than that.