That's the whole point, I'm glad you agree that the fiction of austerity is depriving the UK of "sensible expenditures".
They may well be sensible, but for 7 years this Tory government has argued that austerity is a necessity. Now suddenly when they need to find allies to keep them in power at any cost, it's not. And where is the equivalent money being released to Wales and Scotland? Oh wait, the Tories aren't relying on Plaid Cymru or SNP MPs to keep them in power.
And all of this places the GFA in terrible jeopardy.
Anyway, having called an election 3 years early to get a stronger mandate and ended up with a weaker one there's a strong argument that under the parliamentary system as it ought and used to function she should have done the honorable thing. She didn't, so contempt is well merited.