Pretty much. A significant portion of my sympathy comes from having been in similar situations as a goalie - I was (and am) quite slight for a keeper, and never quite hit the 6' 0" mark in terms of height, either, so I got roughed around a lot by blockhouse forwards who would leave the boot in and steam into frankly unnecessary challenges just to set a precedent for a future attempt to knock the ball out of my hands in a corner situation or when I came out to collect a cross. They played the ref - if he gave too many things in my favor, he'd look like he was protecting the goalkeeper too much, so they'd get a lot of obvious fouls out of the way early so that in the significant moments, they could challenge wildly for the ball and reasonably expect the ref to think 'well, I've already given a lot of fouls in that keeper's favor, best let that one stand'.
I got enormously angry when I saw how the refs were getting played by these guys game after game - I even pointed it out to them time and again, but refs are an unusually blinkered lot in any country, anywhere, so I just got brushed off. Can you imagine, then, how it felt for Alli, who was getting the s*it slyly kicked out of him for the entirety of the game leading up to that moment, and had just been clearly cleared out again by a gleeful opponent who knew that the ref (standing right in front of him) wouldn't give jack sh*t because he had a Gent top on under his disgracefully-obtained ref's shirt?
For me, I got sent off once after I kicked out at a forward who'd just thundered into my ankles early on in a game looong after I'd picked up the ball he was running onto. He was trying the same thing he'd tried in earlier games - this time, he got studs in the stomach for his troubles. I got sent off, our team lost, I was dropped for a long while - it felt horrible.
I agree that Alli was stupid, that he plays at an (enormously) higher level and should know better, that he could have been more strategic. But I don't blame him at all, because when you have a ref as a c*ntish as the one who pretended to do the job yesterday, seeing red after realizing that the c*nt who just cleaned you out was probably laughing in his head at how one-sided this ref was seems like an eminently human, understandable thing.
In the future, do it more strategically - it's all I ask. If the ref is as c*ntish as this and your opponents realize it, you're effectively on your own out there - worse still, you may actually be at a disadvantage, because the ref will dish out yellow cards to you and your team for complaining about the opponents but will do nothing when they clatter into you or strategically foul you. So, in those situations, do it strategically. Get DeJaegere at a more opportune time, maybe when challenging for a cross or some other sort of winnable 50:50. Get Dier to shuffle across and thump him in an innocent way when the ref's eyes are diverted. Do what Lamela did and step on his hand while walking around, *purely* unintentionally.
Don't let DeJaegere and his team-mates dominate all the dark arts and game management because the ref is a paid-off turdstain. Do it yourself, but more intelligently.