from perspective that time is infinite. they can go forward, back in time without any rationale just cause.
lt waters down the impact and events of T2 every time they 'defer' the onset of Skynet.
Such a brilliant story in T2 of 'no fate' and rewriting the future became somewhat meaningless in T3 when we were told it was that 'General all along'. And it contradicted the concept of T2 of preventing Judgement Day to casually change it to 'survive it'.
I found that as quite a cop just so another movie could be made, with Judgement Day deferred for a later date instead. So much for 'no fate but what we make for ourselves'.
T3 also ****ed the timeline but that's a whole different story altogether.
Anyway, point being as a viewer, it doesn't really resonate with me when they blow up Cyberdyne again and again. It's not prevention anyway, its deferrment.
I found the concept of T2's cause and effect (ie, backwards re-engineering from the 1984 T-800) absolutely fascinating. Such care and detail was spent to explain this, and the importance of eradicating it.
But then its such weak storytelling later on to say 'oh yeah, it was that other guy all along'.
There's no point trying to keep on blowing up Cyberdyne in future movies. It's been done.
Hopefully there is something else up their sleeve. As it sounds like the next two are being made regardless how much this one failed.