Has May handled this incompetently? I agree either option hurts Britain financially, but I don't think she is ruling for the benefit of her people. I think the idea is to sink Brexit for the benefit of the US without costing her own elite too much money.
If Russia is attacking Britain's post Brexit WTO position its to undermine a US ally. Russia can benefit from a US-EU disagreement but thats been happening for some time without external interference. This is not some masterstroke by Putin, he's merely looking on while the big dog mauls another member of the pack: the Yanks are still coming for him.
I think May has shuffled through a poor deal (financially better than no deal) that is a betrayal of both the Brexit vote and the EU. She is trying to satisfy the City (in my view comfortably to most powerful voice in British politics, there hasn't been a Labour government that wasn't actually Liberal or Tory Lite in decades) by keeping their provision of tax havens to corrupt Europeans open, and throw a spanner into the tracks of German's tottering federal empire. "Making Britain Great" is not an option here, its a question of hacking away from the EU symbiote (hoping the operation will kill it and not Britain) or staying slightly connected in the hope of extracting a modicum of power and wealth and pretending "sovreignty has been restored".
From the outside she is showing skill and poise, for example triggering the no confidence challenge and killing it before it was ripe, and getting this abortion of a deal onto the table where people now have to actually deal with it, when it benefits no one in Britain.
If you imagine she's incompetent how has she positioned herself at this point? She has proved far more skilled at politics than say Farage or the straw headed troll Boris. I disagree with Farage's politics, but his message that the EU had eroded British sovereignty was true, preached in good faith and accepted by the majority (in the face of dissaproval by all major parties too). He was so popular he had defectors from all parties jumping into his ship. There is a vague parallel with Trump, in that electorates know when they are being offered
and sometimes troll their masters by picking the supposed worse option for
and giggles.
The fact this has been betrayed and something other than Brexit is now the best bet to come through Parliament is a clear sign of how weak British democracy is.