Ooooh! Can I join in the pedantry! (with apologies to
Warwick but this quite fun!

)
I think
due to is fine, but I'd make a few other corrections (bolded):
It's should be
This is (Because
It's implies that you are referring back only to the punctuation system, not the claim of it being lost)
which should have a comma before it.
happened should be
had happened (slightly ironic when you're picking up on misuse of tenses!)
To be fair,
check out is a compound verb - a construct that has a very long history in English - it's not new. Other examples are
pick up,
put down, and
check in. And I'd say the verb
check out (in the context you're using it in) is useful because it carries a slight sense of '
evaluate' - which is not captured by alternatives such as
watch or
look at (Hey - another compound verb!).
I now await with baited breath for someone to find the mistakes in my post (obviously, if there are any, they are deliberate

).