I've heard about this for a while and I think it's bang out of order. As the OP says, any airline which is making those sorts of profits (no doubt with a massive cash pile too) should be at least providing guarantees to the everyone, ideally emulating Aer Lingus and coughing up for the entire thing.
As for the number of women pilots, I think there simply needs to be a measure of the percentage of applicants against the percentage of female applicants. Same for all backgrounds, I believe it's called equal opportunities monitoring.
Some jobs appeal more to certain genders, there are very few male primary school teachers or male midwives (yes they do exist). I don't believe there should be any "positive" discrimination based on gender at all.
No blokes I've come across think this Easyjet offering is actually fair. I'm amazed that any man would actually come out on record and support it.