Biden's lead is already considerably large, 9-10%, meaning that a "convention bump" was very unlikely. There's basically no where to grow as Trump has a solid base of around 40%. What will be curious to see is if, after the RNC, Trump gets a bump.
Yeah, if more polling suggests this, I would say that my expectations for it were met too. This election just may have opinions of the candidates too baked in already for any real movement to occur. If Trump doesn't get a bump of any kind then Biden will almost certainly remain in the stable position he's maintained since April or so.
It wasn't a complete loss though. Biden came out of the convention with a lot of money raised and potentially more confidence in him as a candidate and in his message.
