Yes, until such time as the network experiences Actual Congestion® (competitive fees failing to properly prioritize their transactions).
The 'stress tests' were supposed to cause that, but backfired spectacularly as consequent improvements (EG RBF) to nodes/pools/wallets/miners strengthened the network.
That's what happens when you attack an antifragile system. When (and only when) faced with adversity, Bitcoin gains in resiliency.
Please note XT displays no such antifragile attributes, and is stagnating/shrinking under the weight of revelations about its suspiciously hidden anti-Tor/privacy invading/blacklisting/centralized "final call" features.