bro we get early PJI in our WEAPONS RESEARCH. our MO is trap and kill. my egg has grav bomb. i have PJI. i have star base. you try to jump out ill grav bomb you while my SB rapes you. games over just about. subverters even if they cant get in range of repulse itself can still hit the other ships within the bubble.
it truly isnt an uphill battle. you just need to know how to use your units correctly. synergies are good and all but nothing to straight up correct use of units.
Trap and kill works, but that implies you have an Advent fleet on the run which can be damn hard to do sometimes.
The correct use of units is why the Advent are so great, their ships work the best together or any race, and they have strong ships to begin with. Any race can beat any other race, but the advent have the definitive advantage in mid-late game fleet.
The TEC can counter this with numbers, and the vasari with some early rushing to keep the player down, but if an Advent player makes it to late game.... watch out