only if done properly, which they aren't. Either do airport style security and do it properly or don't bother, because half-hearted, lazy attempts at randomly picking blokes and scanning them and letting the women go through unscanned (because there's never ever been a female suicide bomber) just makes a mockery and makes it a) easy for someone bad to get in if they want and b) gives them lovely queues to blow up outside if they fancy it anyway.
So basically the club now give us 2 unsafe places to get blown up whereas before at least you could get through the turnstiles quickly enough to be low risk, and take your chances inside. Now, you're a prime target outside unless you give up your day and don't get stuck in traffic to get there early enough to be fortunate enough to avoid a queue, and then because the checks are so poor and lazy anyway you've still got pretty much the same chance of being blown up inside.
After the MEN you'd hope they'd sort it, but they've made no noises that they have.
I understand what you're saying about being a target outside but towards the end of the season the queues seemed a lot more organised and went down quicker (I go in at entrance M1). I go to the games with my friend and his sister and she's searched by a female steward at every game.
In my experience they check everyone, not just randomly picking them out, but I'm in the South Stand so it might be different elsewhere in the ground. I don't think arriving 15 minutes earlier, especially for weekend games, is that difficult.