why one have to seek Traditional Latin Mass?
If one were to parse the rubrics (rules for saying the Mass) one would possibly come to the conclusion that the EF (Extraordinary Form, or what you referred to as The Latin Mass) tends more towards God Transcendent, and the OF (Ordinary Form, or what is said in the vast majority of parishes in the US) brings in more God Immanent.
The matter of which one to go to is a matter of preference. It was the intent of the 2,147 bishops who signed Sacrosanctum Concilium that changes be made to the Mass. Some have felt that the changes were either too wide, or too abrupt, or both. But the vast majority of Masses said in the US are the OF, which was promulgated after Vatican 2.
As an aside, you might want to reconsider which internet sites you visit. It is not that sites are bad per se, but rather that the ones you seem to be seeing are perhaps less than charitable to the changes made to the Mass.
I live in a smaller metropolitan area with 4 parishes, the largest of which has 3,000 families. In those four parishes the majority of Masses are said in English; the next grouping is in Spanish, then Vietnamese, then Tagalog, and one Mass in Latin in the EF. The attendance at the last is the lowest, with fewer than 100 people (and it is in the parish of 3,000 families).