As someone who was present there on the side of Core I did not find DTR conduct (too) concerning. They waited plenty until Core had some more people logging.
Sure, camping 3.3 k outside our main base could have been better handled, and some more distance maintained, but they dropped plenty of lines as a group. Personally, I find the rule of everyone having to drop lines before engaging a bit silly when the situation is obviously escalating and two groups are engaged in a standoff, but it is what it is with this engine and administration limitations.