It does seem obvious. Timing
https://news.sky.com/story/putin-will-break-any-peace-deal-where-ukraine-is-not-defended-by-coalition-of-the-willing-starmer-warns-13332903
I don't think it's a coincidence that it happens the same day Starmer meets with 'coalition of the willing' to discuss ceasefire in Ukraine and has a direct attack on Putin about him not being trustworthy. Power games. Hybrid warfare.