This is a great opportunity for Warsh where principle aligns with practical outcomes: he dislikes forward guidance, thinks central bankers are poor forecasters, and it hurts internal deliberations. By removing forward guidance now, he can excise what three bank presidents dissented on last time, getting his group more likely to vote for the statement.
On inflation: recent price increases are backward-looking, driven by world oil prices due to Middle East tensions. Going forward, with partial resolution of those tensions, oil prices should fall, easing inflation. Households and firms may not be that worried, so it's not as dire as markets price.