If you have to preface a statement with "so you're saying..." and paraphrasing it, you're probably making a strawman argument. Otherwise you could just reply directly to the point that was made.
But you didn't explain why you think ultimates requiring consistency was bad, you just said it "artificially" extends the amount of time required to prog the fights - implying that the design is inherently flawed. If you can explain why you don't like it, or why you think it's bad, then do that instead of slapping the word "artificial" on it and calling it a day.
A scrub is a player who blames their lack of success on the game or their opponent rather than their own lack of skill or poor decision making. You can decide for yourself whether you're a scrub or not. I wasn't directly calling you a scrub as much as saying that dismissing a source of difficulty as "artificial" instead of either getting good and overcoming it or deciding that the game isn't something that they want to play is scrub behaviour.
There are many forms of difficulty in game design. The player is expected to have or develop different skills to meet the needs to content. Asking players to meet a level of consistency to beat the content is entirely valid. Aside from ultimate, another good example of this would be any boss with a very high health pool in Souls or Monster Hunter. They force the player to correctly resolve mechanics and survive for a long time, i.e. the key to winning in these fights is consistency.
Personally, I wish there was a wider variety of content in FFXIV, with different forms of difficulty that ask different things of the players. But given the snapshot-based netcode and current game design whereby jobs and roles are easy enough for the absolute bottom of the playerbase barrel to play, there isn't much else they can do. The devs have designed themselves into a corner so to speak. They can't really leverage mechanical skill or reaction times because the game is too sluggish and they can't really leverage tight DPS or role checks because jobs and roles have been degraded so much that the only way to create a challenge here is by making things so tight that they're a crit variance dice roll.