I think there are things that can happen (listed a, b and c in my last post) that can prevent it. But none of that is currently happening right now, or happening enough. So as of typing this right now, with Farage still the leader, I think it's unfortunately what we're currently heading towards.
Another thing that is going in Reform's favour at the moment is just how much they're being talked about, especially in the mainstream media and on social media. I see Reform related content on social media everywhere without even trying to look for it, but very little, for example, Lib-Dem content. This forum is an example. We're up to 26 pages now about Reform, nothing for Lib-Dems. Now imagine that kind of ratio of discussion levels replicated on other sites or social media and suddenly the visibility or spotlight of Reform is glaringly more obvious.
Imagine the current rise/fascination/coverage of Reform like this. 2 people walk into a shop and you're behind the counter.
One customer calmly walks in, gets what they needs, smiles to you and asks how you are, pays and leaves calmly and you've known them for years.
The other is a new customer to the shop. They speak really loudly and are in a very energetic mood. They're talking to anyone they can telling whatever they want to whoever will listen, they do a little dance or scream when they realise no one in the shop is giving them attention and then when they pay, they tell you that you did a great job before making a grand over the top exit.
Which person are you going to pay more attention to as they walk around the shop? Which person is going to get noticed more by the other customers in the shop? Which person is more likely to say or do something that gets their behaviour posted on social media?
In case anyone was wondering and didn't figure it out, the first customer is practically everyone else in politics. The new customer is Reform/Farage.
But do people like the new customer? They would come across as annoying to me.
As I have stated several times I suspect a lot of people are complacent due to the election likely being in 4 years' time and if things don't change, there will be a lot more action.
On the other hand, things could change and it could just be a rather bizarre mid-2020s fashion. As recently as the winter, Labour and the Tories were vying for first place in the polls. Remember the SDP bubble in the early 80s? Came to nothing.

