networkn:
The guy went knowingly onto a Rugby field. If you think he wasn't expecting a response from security you are quite wrong. He would have been expecting to be tackled. The fact he didn't see it coming, well that's just tough. He had the brains to plan, and execute getting past security to expose
himself to 25000 people, you'd think he'd have the brains to watch his flank. There is no scenario by which he didn't create this situation himself, and I have been at matches where the streaker has run rampant due to the security not being tough enough.
He was an idiot and deserved what he got.
manhandled and dragged away? fine. no problem with that.
tackled in the manner he was - no way. Simply too over the top and unnecessary.