Or it could be an indication that Google is considering a bigger picture than the EFF is. TPP is a comprehensive agreement, covering a wide range of topics and activities. Here are the titles of the major components:
Competition & Business Facilitation
Competition Policy
Cooperating & Capacity Building
Cross Border Trade in Services
Customs Administration & Trade Facilitation
Development
Dispute Settlement
Electronic Commerce
Environment
Financial Services
Government Procurement
Intellectual Property
Investment
Labour
National Treatment & Market Access for Goods
Regulatory Coherence
Rules of Origin and Origin Procedures
Sanitary & Phytosanitary Measures
Small & Medium-sized Businesses
State-Owned Enterprises
Technical Barriers to Trade
Telecommunications
Temporary Entry for Business Persons
Textiles & Apparel
Trade Remedies
Transparency & Anti-Corruption
The EFF's opposition seems to be almost all based on just one of those components (Intellectual Property). It is quite possible that others, including Google, could see enough positives in the other components to outweigh the negatives the EFF sees in the IP component even if they agree with the EFF that those IP provisions are serious negatives.
This is especially true when you consider that much of the EFF's criticism of the IP section is over provisions that are already in effect in the US, and to a lesser extent in Europe. For instance, the US and Europe already have the 70 year copyright term, and the US and Europe already have anti-circumvention measures (DMCA in the US, the Copyright Directive [1] in the EU). Basically, many of the things the EFF objects to ALREADY APPLY to Google in most of Google's markets.
[1] https://en.wikipedia.org/wiki/Copyright_Directive