It isn't really a low rate server thing it is just that it took a while for TalonRO to touch anything pvp/woe related. A few years back, tRO had FAR more active WoE and PvP players but they moved to other servers (or quit in general in some cases since RO is a fairly old game) since there was an extended period of time when WoE and PvP were basically ignored. While the active PvP population (across most RO servers) admittedly do tend to play on servers with easy access gear, that isn't the primary reason why they choose those servers. They choose servers based on how competitive the WoE scene is and how active WoE is overall. Things like guild packages do help some guilds migrate but most guilds are willing to put in some effort in leveling if the WoE scene is active. BG isn't in need of an update, it simply isn't that active because WoE isn't that active. If the vanilla WoE population grows, BG activity will naturally grow with it.
@LumeyaAfter you play a game for so long, you need something new to excite you. The people who you mentioned that are sitting around with billions have probably done just about everything they want to in game so you can hardly expect us to be extremely active and constantly helping out new players. When you are that rich/geared, the game loses any sense of difficulty unless the GMs create some super tough PvE content but that would mean that lesser geared players wouldn't be able to challenge that content.
Many of the active players aren't super rich so they tend to focus on earning zeny and less on helping others. When a server has been around as long as TalonRO has, some of the prices for gear seem mind blowing to new players so they farm like crazy in an attempt to reach the peak. They'll farm and farm and farm to buy new gear so that they can farm more efficiently and then they'll farm some more. The cycle repeats itself endlessly until the player figures out what sort of "endgame" they wish to reach and enjoy.
The best way to promote general activity is through creating helpful guilds for newer players and involving the public whenever possible (through mainchat, the forums, or tRO discord). You have to be the change that you want to see. One of the things I noticed this server has always been lacking would be motivated guild leaders (for ANY form of content whether it be PvE, Social, PvP, or WoE). You tend to see one or two popular guilds (for each category) and then a ton of personal guilds or guilds for a small friend group. It usually takes at least one person doing a lot of the heavy lifting (creating a guild, advertising, setting up website/forumpage/discord channel/rules/supplies/leadershiproles) before people tend to get involved.