There's clearly a degree of coordination with the BBC in attempting to 'normalise' this outrageous decision. An article on the BBC website that reads like a free ITV advert announces the "first head-to-head debate" of the campaign - words that are cynically intended to condition readers into believing that two-way debates are somehow natural in a multi-party democracy, and that it's also natural to expect more than one during the campaign. No prizes for guessing what the BBC will be doing themselves. Criticism of ITV's decision is absent from the article - distinctly odd in what is supposedly a 'news' report.
No, guys, this ain't normal, and no amount of spin and deception is ever going to make it look normal. It's particularly unacceptable in Scotland, one of the constituent nations of the democracy ITV and the BBC nominally serve, and in which neither the Tories nor Labour are the largest party. Doubtless, though, both broadcasters will continue to innocently express bafflement at the ongoing loss of trust in them from Scottish viewers.