can you please stop making us lose progress inside instances if we get DC'ed?

[Poormany.4507]

Still waiting for years since HoT launched to get this issue fixed. 100% of the time I disconnect is at the very last moment of story instances just after the final cutscene with no other disconnect issues at all in the open world. The problem almost definitely seems to be on Anet's server side, as that is way too specific to happen repeatedly on most story missions I do with cinematics at the end. For me, The Departing mission is the worst for disconnects and I am certain to get at least 2-3+ disconnects at the end before it works.