tenchan started a thread on JP side asking for company seals from the imperial invasion event and here's Mocchi's comment on there.

Quote Originally Posted by Mocchi View Post
こんにちは。
Hello,

スレを入れる場所が分からなくてここに入れました（これバトルコンテンツ？イベント？グラカン？）
スレ違いなら申し訳ありません。
Didn't know where to post this but decided to post here since I didn't know if this was for battle, event, or grand company content. Sorry if it's posted on wrong thread.

軍票も報酬にいれて欲しいと・・エリクサーと薬だけでは寂しいです。
ついでに　もう少し強力な敵も混ぜてもらっても良いです。
どうなんでしょうね、新生までの時間も残り少ないですけど、少人数PTもしくはソロで軍票稼げる期限付なので良いと思うのですが。
Would like to get company seals as a reward just getting medicines and Elixer is sad. Also wouldn't mind having much stronger mob mixed inside as well. There isn't much time till 2.0 but I think it's OK to have a method to get seals with small party or solo since it's limited time
(he's talking about imperial invasion rewards)

ライブイベントの報酬に軍票を入れて欲しいという件ですが、現状グランドカンパニーにまつわるクエストやコンテンツのみ、報酬として軍票が与えられることになっています。
Regarding wanting to have company seals as a reward on the live event, currently you can only obtain seals through quest and contents related to grand company.

このような理由から、グランドカンパニ―と直接関係のないライブイベントの報酬に軍票を入れるというのはちょっと厳しいです。
For that reason it's hard to put in company seals as a reward to this live event as it's not directly related to grand company.

申し訳ないのですが、そういうものだとご理解いただけると助かります。
I'm sorry but if you could please understand that is the reason for this would appreciate it.