In the past, yes, the FT was like that. But not for a long time. It's like thinking professional economists all read The Economist. I know professional investors, a few of them read the WSJ but not yet met one who cared about what the FT think. Mostly they get info from more specialized publications.

They were pro-EU for ideological reasons. Leaving had no effect on the British economy, which isn't what they predicted.

> Leaving had no effect on the British economy

I think this statement contradicts reality somewhat.

Look up the data for yourself. Imports/exports glitched briefly then went right back to their prior levels and trends. There's no observable Brexit impact in economic performance: Britain has continued to roughly follow its neighbours in terms of GDP growth etc.

The UK has suffered massively due to Brexit - many industries such as construction and hospitality (hotels, restaurants) are still heavily understaffed due to the fallout of foreigners leaving.