PWA takes a bizarre approach to the following paragraph

David Bray

PWA online says the paragraph below is a single 61-word sentence beginning with a subject.

I expect "next" is an adverb. But what most concerns me, PWA is ignoring periods and capital letters, signaling the end of one sentence and the beginning of another.

==Paragraph follows ===
Next, I dodge their bullets and self-talk akin to, “With bad news after bad news (insults from [Rob/Barb]), I am so dumb I believe flawed comebacks are OK.” Or “Since [Rob/Barb] aren’t senior staff or friends, I am so dumb I believe nasty replies to nasty comments are OK.” Or “I am so dumb I keep choosing weak techniques with [Rob/Barb].”