My take on the PM's speech is that it does not really take us any further forward.
I would prefer to see the economics of the situation revolving around brexit given far more prominence, because that is where the meat of the discord arises.
Some facts.
EU exports to UK $353170 million    #2 after US
Non agricultural $300000 million
Agricultural    $50000 million

UK exports to EU $214076 million
Non agricultural $196122 million
Agricultural $17194 million

The European countries that trade the most with the UK, and which will be most affected by Brexit, are Germany, the Netherlands and France.
When considering only agri-food trade. France and the Netherlands are the main UK partners, and Ireland replaces Germany in the top three by bilateral trade value. The three main partners account for half of UK imports and exports in the agri-food sectors.
The UK is the third largest export market for Germany after US and France.

France is by far the largest recipient of CAP funding 10054952i(n 1000 EUR). This is about the equivalent of the UK contribution to the EU (once Peter and Paul have both robbed and rewarded)
The statistics clearly demonstrate the EU will be left hurting if they do not stop their stupid games. Ireland will be damaged the most severely unless the EU get around a table and negotiate. The EU knows full well the sensitivity of the border and the peace process. They are being deliberately provocative and should be told in no uncertain terms that the porosity of the border is a matter for Ireland and the UK to resolve. All I see so far is a lot of hot air and posturing on both sides.
Walking away without an agreement will impact the EU far more financially than the UK. This needs to be hammered home to them.
The threat of no more Vorsprung durch Technik, and no more froggie food really ought to get them around a table pronto!