Why 奇蹟 (and not 奇迹) In Simplified Texts I often run across the word 奇蹟 in simplified texts written just like that: 奇蹟.

For example: 


Yes has an article entitled: 


【上帝之子】全美票房创18亿台币奇蹟.

Here's an excerpt also with said writing (emphasis is mine): 


  全台湾预售票票房告捷 各地要求映演声不断
  此生必看圣经电影【上帝之子】（Son of God）不但在美国上映至今已创下十八亿台币票房奇蹟，在台湾，藉着教会的支持，电影还未上映亦已有近两百万的包场及预售票票房成绩，更因观众的要求，陆续增加各地映演戏院，目前全台上映戏院包括台北信义威秀影城、欣欣秀泰影城、今日秀泰影城、板桥秀泰影城、新竹巨城威秀影城、台中Tiger City威秀影城、台南大远百威秀影城、高雄大远百威秀影城、花莲秀泰影城以及台东秀泰影城等十家。



China Times also has an article entitled: 飞机失事 女孩奇蹟逃脱残骸敲门求救


and excerpt:


  根据英国每日邮报报导，一架私家小飞机周五坠落在美国肯塔基州地区，机上5人中有4人丧生，但1名7岁女孩奇蹟生还，自行走出坠机现场，跑到陌生人家敲门求救。机上罹难者除了小女孩的父母，还有她的9岁姊姊与一名14岁表哥。


蹟 has been simplified to 迹.

The writing of 奇迹 is, still, far more common.

The question is then, why do some still insist on writing 奇蹟 in simplified texts?
迹 is not a simplification of 蹟. 迹 is a simplification of 跡, though.

蹟 is a variant character of both. It can be used in either script, as one pleases.